I’d try a hair dryer and a small putty knife. Slowly work the putty knife along the edges while applying heat to loosen the glue. The lip isn’t wide so you won’t need to go deep with the knife to see results. It’s strange, my 1.1’s had no glue and both drivers came off freely with the screws removed. The 1.8’s are definitely stuck on with something besides screws. I bought them separately, years apart.
The 1.8s have been used daily for over 20 years (H/T setup) and still sound the same to me. I had a recent Phish concert on last night and really pushed them, mid 90db peaks at my listening position. The old Danes took it like a champ. Btw- I added Lytmi led strip on the back of my TV and it really adds to the realism of concert video.
@xidnpnlss I’m vicariously following the repair with you and looking forward to future updates. Would it help if I took a pic of the area with the woofer removed so you see the underside? Good luck!